基于Hyperworks的汽车零件轻量化设计
Lightweight Design of Automobile Parts Based on Hyperworks
摘要: 汽车零件的结构设计必须满足一定的刚度性能，在保证刚度的前提下对汽车零件进行轻量化设计也是汽车结构设计的必经之路。现有该汽车零件的结构仍有轻量化空间，并且现有拓扑优化还存在着一体化的设计困境，即模型导入到分析软件的过程中存在数据丢失的问题。为了得到更加轻便的零件结构，本文在Hyperworks中进行建模并使用OptiStruct求解器对汽车关键零件进行拓扑优化。在应变和体积比作为约束的条件下采用变密度法寻找体积最小值，优化后的体积下至原来的55%，同时优化后的最大应力与最大位移也得到相应的改善，得到了较好的优化结果，能为其他的汽车零件设计提供一定的参考。
Abstract: The structural design of automobile parts must meet certain stiffness performance. On the premise of ensuring the stiffness, lightweight design of automobile parts is also the only way of automobile structural design. The structure of the existing automobile part has any space for lightweight, and the existing topology optimization still has an integrated design dilemma; that is, there is a problem of data loss when the model is imported into the analysis software. In order to get a more portable part structure, this paper models in Hyperworks and uses OptiStruct solver to optimize the topolo-gy of key auto parts. Under the conditions of strain and volume ratio as constraints, the variable density method is used to find the minimum volume. The optimized volume is reduced to 55% of the original volume. At the same time, the maximum stress and maximum displacement after op-timization are also improved correspondingly, and a better optimization result is obtained, which can provide a certain reference for the design of other automobile parts.
文章引用：吴雅南, 李嘉诚. 基于Hyperworks的汽车零件轻量化设计[J]. 建模与仿真, 2023, 12(1): 408-415. https://doi.org/10.12677/MOS.2023.121039

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